Daikin Roofpak Heating and Cooling RCS015D to 140D: Maintenance

Routine maintenance should cover the following items:

• Tighten all wire connections.

• Clean condenser coils with cold water, if necessary. Usually any fouling is only matted on the entering air face of the coil and can be removed by brushing.

• Check each circuit’s refrigerant sight glass when the circuit is operating under steady-state, full load conditions. The sightglass should then be full and clear. If it is not, check for refrigerant leaks.

• NOTE: A partially full sight glass is not uncommon at part load conditions.

• Check for proper superheat.

• Check the power and control voltages.

• Check the running amperage of all motors.

• Check all operating temperatures and pressures.

• Check and adjust all temperature and pressure controls as needed.

• Check the operation of all safety controls.

• Check the condenser fans and tighten their setscrews.

• Lubricate the door latch mechanisms.